Alright, let's solve this math problem step by step. First, we have the number 578. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 407. So, we're going to take the number 578 and add it to itself 407 times.
Step 1: 0 + 578 = 578
Step 2: 578 + 578 = 1156
Step 3: 1156 + 578 = 1734
Step 4: 1734 + 578 = 2312
Step 5: 2312 + 578 = 2890
Step 6: 2890 + 578 = 3468
Step 7: 3468 + 578 = 4046
Step 8: 4046 + 578 = 4624
Step 9: 4624 + 578 = 5202
Step 10: 5202 + 578 = 5780
Step 11: 5780 + 578 = 6358
Step 12: 6358 + 578 = 6936
Step 13: 6936 + 578 = 7514
Step 14: 7514 + 578 = 8092
Step 15: 8092 + 578 = 8670
Step 16: 8670 + 578 = 9248
Step 17: 9248 + 578 = 9826
Step 18: 9826 + 578 = 10404
Step 19: 10404 + 578 = 10982
Step 20: 10982 + 578 = 11560
Step 21: 11560 + 578 = 12138
Step 22: 12138 + 578 = 12716
Step 23: 12716 + 578 = 13294
Step 24: 13294 + 578 = 13872
Step 25: 13872 + 578 = 14450
Step 26: 14450 + 578 = 15028
Step 27: 15028 + 578 = 15606
Step 28: 15606 + 578 = 16184
Step 29: 16184 + 578 = 16762
Step 30: 16762 + 578 = 17340
Step 31: 17340 + 578 = 17918
Step 32: 17918 + 578 = 18496
Step 33: 18496 + 578 = 19074
Step 34: 19074 + 578 = 19652
Step 35: 19652 + 578 = 20230
Step 36: 20230 + 578 = 20808
Step 37: 20808 + 578 = 21386
Step 38: 21386 + 578 = 21964
Step 39: 21964 + 578 = 22542
Step 40: 22542 + 578 = 23120
Step 41: 23120 + 578 = 23698
Step 42: 23698 + 578 = 24276
Step 43: 24276 + 578 = 24854
Step 44: 24854 + 578 = 25432
Step 45: 25432 + 578 = 26010
Step 46: 26010 + 578 = 26588
Step 47: 26588 + 578 = 27166
Step 48: 27166 + 578 = 27744
Step 49: 27744 + 578 = 28322
Step 50: 28322 + 578 = 28900
Step 51: 28900 + 578 = 29478
Step 52: 29478 + 578 = 30056
Step 53: 30056 + 578 = 30634
Step 54: 30634 + 578 = 31212
Step 55: 31212 + 578 = 31790
Step 56: 31790 + 578 = 32368
Step 57: 32368 + 578 = 32946
Step 58: 32946 + 578 = 33524
Step 59: 33524 + 578 = 34102
Step 60: 34102 + 578 = 34680
Step 61: 34680 + 578 = 35258
Step 62: 35258 + 578 = 35836
Step 63: 35836 + 578 = 36414
Step 64: 36414 + 578 = 36992
Step 65: 36992 + 578 = 37570
Step 66: 37570 + 578 = 38148
Step 67: 38148 + 578 = 38726
Step 68: 38726 + 578 = 39304
Step 69: 39304 + 578 = 39882
Step 70: 39882 + 578 = 40460
Step 71: 40460 + 578 = 41038
Step 72: 41038 + 578 = 41616
Step 73: 41616 + 578 = 42194
Step 74: 42194 + 578 = 42772
Step 75: 42772 + 578 = 43350
Step 76: 43350 + 578 = 43928
Step 77: 43928 + 578 = 44506
Step 78: 44506 + 578 = 45084
Step 79: 45084 + 578 = 45662
Step 80: 45662 + 578 = 46240
Step 81: 46240 + 578 = 46818
Step 82: 46818 + 578 = 47396
Step 83: 47396 + 578 = 47974
Step 84: 47974 + 578 = 48552
Step 85: 48552 + 578 = 49130
Step 86: 49130 + 578 = 49708
Step 87: 49708 + 578 = 50286
Step 88: 50286 + 578 = 50864
Step 89: 50864 + 578 = 51442
Step 90: 51442 + 578 = 52020
Step 91: 52020 + 578 = 52598
Step 92: 52598 + 578 = 53176
Step 93: 53176 + 578 = 53754
Step 94: 53754 + 578 = 54332
Step 95: 54332 + 578 = 54910
Step 96: 54910 + 578 = 55488
Step 97: 55488 + 578 = 56066
Step 98: 56066 + 578 = 56644
Step 99: 56644 + 578 = 57222
Step 100: 57222 + 578 = 57800
Step 101: 57800 + 578 = 58378
Step 102: 58378 + 578 = 58956
Step 103: 58956 + 578 = 59534
Step 104: 59534 + 578 = 60112
Step 105: 60112 + 578 = 60690
Step 106: 60690 + 578 = 61268
Step 107: 61268 + 578 = 61846
Step 108: 61846 + 578 = 62424
Step 109: 62424 + 578 = 63002
Step 110: 63002 + 578 = 63580
Step 111: 63580 + 578 = 64158
Step 112: 64158 + 578 = 64736
Step 113: 64736 + 578 = 65314
Step 114: 65314 + 578 = 65892
Step 115: 65892 + 578 = 66470
Step 116: 66470 + 578 = 67048
Step 117: 67048 + 578 = 67626
Step 118: 67626 + 578 = 68204
Step 119: 68204 + 578 = 68782
Step 120: 68782 + 578 = 69360
Step 121: 69360 + 578 = 69938
Step 122: 69938 + 578 = 70516
Step 123: 70516 + 578 = 71094
Step 124: 71094 + 578 = 71672
Step 125: 71672 + 578 = 72250
Step 126: 72250 + 578 = 72828
Step 127: 72828 + 578 = 73406
Step 128: 73406 + 578 = 73984
Step 129: 73984 + 578 = 74562
Step 130: 74562 + 578 = 75140
Step 131: 75140 + 578 = 75718
Step 132: 75718 + 578 = 76296
Step 133: 76296 + 578 = 76874
Step 134: 76874 + 578 = 77452
Step 135: 77452 + 578 = 78030
Step 136: 78030 + 578 = 78608
Step 137: 78608 + 578 = 79186
Step 138: 79186 + 578 = 79764
Step 139: 79764 + 578 = 80342
Step 140: 80342 + 578 = 80920
Step 141: 80920 + 578 = 81498
Step 142: 81498 + 578 = 82076
Step 143: 82076 + 578 = 82654
Step 144: 82654 + 578 = 83232
Step 145: 83232 + 578 = 83810
Step 146: 83810 + 578 = 84388
Step 147: 84388 + 578 = 84966
Step 148: 84966 + 578 = 85544
Step 149: 85544 + 578 = 86122
Step 150: 86122 + 578 = 86700
Step 151: 86700 + 578 = 87278
Step 152: 87278 + 578 = 87856
Step 153: 87856 + 578 = 88434
Step 154: 88434 + 578 = 89012
Step 155: 89012 + 578 = 89590
Step 156: 89590 + 578 = 90168
Step 157: 90168 + 578 = 90746
Step 158: 90746 + 578 = 91324
Step 159: 91324 + 578 = 91902
Step 160: 91902 + 578 = 92480
Step 161: 92480 + 578 = 93058
Step 162: 93058 + 578 = 93636
Step 163: 93636 + 578 = 94214
Step 164: 94214 + 578 = 94792
Step 165: 94792 + 578 = 95370
Step 166: 95370 + 578 = 95948
Step 167: 95948 + 578 = 96526
Step 168: 96526 + 578 = 97104
Step 169: 97104 + 578 = 97682
Step 170: 97682 + 578 = 98260
Step 171: 98260 + 578 = 98838
Step 172: 98838 + 578 = 99416
Step 173: 99416 + 578 = 99994
Step 174: 99994 + 578 = 100572
Step 175: 100572 + 578 = 101150
Step 176: 101150 + 578 = 101728
Step 177: 101728 + 578 = 102306
Step 178: 102306 + 578 = 102884
Step 179: 102884 + 578 = 103462
Step 180: 103462 + 578 = 104040
Step 181: 104040 + 578 = 104618
Step 182: 104618 + 578 = 105196
Step 183: 105196 + 578 = 105774
Step 184: 105774 + 578 = 106352
Step 185: 106352 + 578 = 106930
Step 186: 106930 + 578 = 107508
Step 187: 107508 + 578 = 108086
Step 188: 108086 + 578 = 108664
Step 189: 108664 + 578 = 109242
Step 190: 109242 + 578 = 109820
Step 191: 109820 + 578 = 110398
Step 192: 110398 + 578 = 110976
Step 193: 110976 + 578 = 111554
Step 194: 111554 + 578 = 112132
Step 195: 112132 + 578 = 112710
Step 196: 112710 + 578 = 113288
Step 197: 113288 + 578 = 113866
Step 198: 113866 + 578 = 114444
Step 199: 114444 + 578 = 115022
Step 200: 115022 + 578 = 115600
Step 201: 115600 + 578 = 116178
Step 202: 116178 + 578 = 116756
Step 203: 116756 + 578 = 117334
Step 204: 117334 + 578 = 117912
Step 205: 117912 + 578 = 118490
Step 206: 118490 + 578 = 119068
Step 207: 119068 + 578 = 119646
Step 208: 119646 + 578 = 120224
Step 209: 120224 + 578 = 120802
Step 210: 120802 + 578 = 121380
Step 211: 121380 + 578 = 121958
Step 212: 121958 + 578 = 122536
Step 213: 122536 + 578 = 123114
Step 214: 123114 + 578 = 123692
Step 215: 123692 + 578 = 124270
Step 216: 124270 + 578 = 124848
Step 217: 124848 + 578 = 125426
Step 218: 125426 + 578 = 126004
Step 219: 126004 + 578 = 126582
Step 220: 126582 + 578 = 127160
Step 221: 127160 + 578 = 127738
Step 222: 127738 + 578 = 128316
Step 223: 128316 + 578 = 128894
Step 224: 128894 + 578 = 129472
Step 225: 129472 + 578 = 130050
Step 226: 130050 + 578 = 130628
Step 227: 130628 + 578 = 131206
Step 228: 131206 + 578 = 131784
Step 229: 131784 + 578 = 132362
Step 230: 132362 + 578 = 132940
Step 231: 132940 + 578 = 133518
Step 232: 133518 + 578 = 134096
Step 233: 134096 + 578 = 134674
Step 234: 134674 + 578 = 135252
Step 235: 135252 + 578 = 135830
Step 236: 135830 + 578 = 136408
Step 237: 136408 + 578 = 136986
Step 238: 136986 + 578 = 137564
Step 239: 137564 + 578 = 138142
Step 240: 138142 + 578 = 138720
Step 241: 138720 + 578 = 139298
Step 242: 139298 + 578 = 139876
Step 243: 139876 + 578 = 140454
Step 244: 140454 + 578 = 141032
Step 245: 141032 + 578 = 141610
Step 246: 141610 + 578 = 142188
Step 247: 142188 + 578 = 142766
Step 248: 142766 + 578 = 143344
Step 249: 143344 + 578 = 143922
Step 250: 143922 + 578 = 144500
Step 251: 144500 + 578 = 145078
Step 252: 145078 + 578 = 145656
Step 253: 145656 + 578 = 146234
Step 254: 146234 + 578 = 146812
Step 255: 146812 + 578 = 147390
Step 256: 147390 + 578 = 147968
Step 257: 147968 + 578 = 148546
Step 258: 148546 + 578 = 149124
Step 259: 149124 + 578 = 149702
Step 260: 149702 + 578 = 150280
Step 261: 150280 + 578 = 150858
Step 262: 150858 + 578 = 151436
Step 263: 151436 + 578 = 152014
Step 264: 152014 + 578 = 152592
Step 265: 152592 + 578 = 153170
Step 266: 153170 + 578 = 153748
Step 267: 153748 + 578 = 154326
Step 268: 154326 + 578 = 154904
Step 269: 154904 + 578 = 155482
Step 270: 155482 + 578 = 156060
Step 271: 156060 + 578 = 156638
Step 272: 156638 + 578 = 157216
Step 273: 157216 + 578 = 157794
Step 274: 157794 + 578 = 158372
Step 275: 158372 + 578 = 158950
Step 276: 158950 + 578 = 159528
Step 277: 159528 + 578 = 160106
Step 278: 160106 + 578 = 160684
Step 279: 160684 + 578 = 161262
Step 280: 161262 + 578 = 161840
Step 281: 161840 + 578 = 162418
Step 282: 162418 + 578 = 162996
Step 283: 162996 + 578 = 163574
Step 284: 163574 + 578 = 164152
Step 285: 164152 + 578 = 164730
Step 286: 164730 + 578 = 165308
Step 287: 165308 + 578 = 165886
Step 288: 165886 + 578 = 166464
Step 289: 166464 + 578 = 167042
Step 290: 167042 + 578 = 167620
Step 291: 167620 + 578 = 168198
Step 292: 168198 + 578 = 168776
Step 293: 168776 + 578 = 169354
Step 294: 169354 + 578 = 169932
Step 295: 169932 + 578 = 170510
Step 296: 170510 + 578 = 171088
Step 297: 171088 + 578 = 171666
Step 298: 171666 + 578 = 172244
Step 299: 172244 + 578 = 172822
Step 300: 172822 + 578 = 173400
Step 301: 173400 + 578 = 173978
Step 302: 173978 + 578 = 174556
Step 303: 174556 + 578 = 175134
Step 304: 175134 + 578 = 175712
Step 305: 175712 + 578 = 176290
Step 306: 176290 + 578 = 176868
Step 307: 176868 + 578 = 177446
Step 308: 177446 + 578 = 178024
Step 309: 178024 + 578 = 178602
Step 310: 178602 + 578 = 179180
Step 311: 179180 + 578 = 179758
Step 312: 179758 + 578 = 180336
Step 313: 180336 + 578 = 180914
Step 314: 180914 + 578 = 181492
Step 315: 181492 + 578 = 182070
Step 316: 182070 + 578 = 182648
Step 317: 182648 + 578 = 183226
Step 318: 183226 + 578 = 183804
Step 319: 183804 + 578 = 184382
Step 320: 184382 + 578 = 184960
Step 321: 184960 + 578 = 185538
Step 322: 185538 + 578 = 186116
Step 323: 186116 + 578 = 186694
Step 324: 186694 + 578 = 187272
Step 325: 187272 + 578 = 187850
Step 326: 187850 + 578 = 188428
Step 327: 188428 + 578 = 189006
Step 328: 189006 + 578 = 189584
Step 329: 189584 + 578 = 190162
Step 330: 190162 + 578 = 190740
Step 331: 190740 + 578 = 191318
Step 332: 191318 + 578 = 191896
Step 333: 191896 + 578 = 192474
Step 334: 192474 + 578 = 193052
Step 335: 193052 + 578 = 193630
Step 336: 193630 + 578 = 194208
Step 337: 194208 + 578 = 194786
Step 338: 194786 + 578 = 195364
Step 339: 195364 + 578 = 195942
Step 340: 195942 + 578 = 196520
Step 341: 196520 + 578 = 197098
Step 342: 197098 + 578 = 197676
Step 343: 197676 + 578 = 198254
Step 344: 198254 + 578 = 198832
Step 345: 198832 + 578 = 199410
Step 346: 199410 + 578 = 199988
Step 347: 199988 + 578 = 200566
Step 348: 200566 + 578 = 201144
Step 349: 201144 + 578 = 201722
Step 350: 201722 + 578 = 202300
Step 351: 202300 + 578 = 202878
Step 352: 202878 + 578 = 203456
Step 353: 203456 + 578 = 204034
Step 354: 204034 + 578 = 204612
Step 355: 204612 + 578 = 205190
Step 356: 205190 + 578 = 205768
Step 357: 205768 + 578 = 206346
Step 358: 206346 + 578 = 206924
Step 359: 206924 + 578 = 207502
Step 360: 207502 + 578 = 208080
Step 361: 208080 + 578 = 208658
Step 362: 208658 + 578 = 209236
Step 363: 209236 + 578 = 209814
Step 364: 209814 + 578 = 210392
Step 365: 210392 + 578 = 210970
Step 366: 210970 + 578 = 211548
Step 367: 211548 + 578 = 212126
Step 368: 212126 + 578 = 212704
Step 369: 212704 + 578 = 213282
Step 370: 213282 + 578 = 213860
Step 371: 213860 + 578 = 214438
Step 372: 214438 + 578 = 215016
Step 373: 215016 + 578 = 215594
Step 374: 215594 + 578 = 216172
Step 375: 216172 + 578 = 216750
Step 376: 216750 + 578 = 217328
Step 377: 217328 + 578 = 217906
Step 378: 217906 + 578 = 218484
Step 379: 218484 + 578 = 219062
Step 380: 219062 + 578 = 219640
Step 381: 219640 + 578 = 220218
Step 382: 220218 + 578 = 220796
Step 383: 220796 + 578 = 221374
Step 384: 221374 + 578 = 221952
Step 385: 221952 + 578 = 222530
Step 386: 222530 + 578 = 223108
Step 387: 223108 + 578 = 223686
Step 388: 223686 + 578 = 224264
Step 389: 224264 + 578 = 224842
Step 390: 224842 + 578 = 225420
Step 391: 225420 + 578 = 225998
Step 392: 225998 + 578 = 226576
Step 393: 226576 + 578 = 227154
Step 394: 227154 + 578 = 227732
Step 395: 227732 + 578 = 228310
Step 396: 228310 + 578 = 228888
Step 397: 228888 + 578 = 229466
Step 398: 229466 + 578 = 230044
Step 399: 230044 + 578 = 230622
Step 400: 230622 + 578 = 231200
Step 401: 231200 + 578 = 231778
Step 402: 231778 + 578 = 232356
Step 403: 232356 + 578 = 232934
Step 404: 232934 + 578 = 233512
Step 405: 233512 + 578 = 234090
Step 406: 234090 + 578 = 234668
Step 407: 234668 + 578 = 235246

So, 578*407 = 235246